Welcome to ETC Educational Technology Connection (HK) Ltd!
Bluetooth, wireless, rechargeable input
This block is smart. It knows how much light there is and transforms that into an action. Use it to open your curtains when the sun rises or turn on lights when it gets dark.
Each wireless block has a Bluetooth chip and rechargeable battery inside it. Simply recharge your block with a Micro USB Charging Cable. Bluetooth Dongle for laptop and charging cables not included.